v0.2.0 — Neutral model, faults, more schemas, quickstart

Rounds out the resource with the missing structural layers.

Added

• Neutral model (MODEL.md) + schemas/normalized/ (lifecycle-state, feeder-model, job-model) — the canonical shape every adapter maps into.
• Faults, errors & recovery pattern (patterns/faults-and-errors.md).
• State-enum schemas for Creality, OctoPrint, PrusaLink, Snapmaker.
• Machine-readable comparison matrix (data/comparison.json).
• Quickstart (QUICKSTART.md) + integrator security model (SECURITY-MODEL.md).
• llms.txt + AGENTS.md for AI consumers; a custom Orchard theme for the docs site; README badges.

Changed

• MkDocs rendering/readability pass (flattened tables & lists repaired; GitHub-compatible anchors). CI on the Node 24 runtime.

Full notes in CHANGELOG.md. Docs: https://chestnutlabs.github.io/printer-protocol-orchard/